The Geographic Information Systems (GIS) Department offers spatial data services through an array of systems, providing access to a wide variety of geographically referenced information.

GIS is a computer system capable of holding and using data describing places on the earth's surface. 

GIS doesn't hold maps or pictures - it holds a database.  The database concept is central to a GIS and is the main difference between a GIS and drafting or computer mapping systems, which can only produce a good graphic output.

Helpful Links

On Line Mapping (Old format mapping search)

Property Lookup Without Mapping (Table based Assessors Old Web Site Search)

PDF Format Maps Pre built maps for download and user printing

FEMA Flood Information Mapping  External FEMA Site

Road Atlas - Political  260 page PDF with all current roads, addresses, ranges, subdivisions and voting precincts and district.

Dorchester County Preliminary Roadway Recommendations

Dorchester County Recommended Bicycle Facilities